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Finding the Fourth Proportional to 625,919.21, 863,677.60 and 350,275.72

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Solution

The fourth proportional to 625,919.21, 863,677.60 and 350,275.72 is: 483,329.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,919.21 : 863,677.60 = 350,275.72 : x
  2. Step 2: Convert to fraction form
    625,919.21/863,677.60 = 350,275.72/x
  3. Step 3: Cross multiply
    625,919.21x = 863,677.60 × 350,275.72
  4. Step 4: Simplify right side
    625,919.21x = 302,525,290,152.99
  5. Step 5: Solve for x
    x = 302,525,290,152.99/625,919.21
  6. Step 6: Final answer
    x = 483,329.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.